Multiple fixes for osctrl-api and api_tester tool

[javuto]

Multiple fixes for osctrl-api and api_tester tool

[Copilot]

Pull request overview

This PR fixes multiple issues in the osctrl-api and the api_tester tool, primarily focused on API authentication, endpoint corrections, and improved test flexibility.

Key changes:

• Enhanced the api_tester.py tool to accept multiple expected HTTP status codes for API tests
• Fixed authentication middleware application for the /checks-auth endpoint
• Corrected API handler mapping from CarveShowHandler to CarveListHandler for the carves endpoint
• Renamed method calls from VerifyType to VerifyService in settings handlers

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
tools/api_tester.py	Enhanced test framework to support multiple expected status codes, improved documentation, fixed request payload field name from "target" to "identifier", and added 404 as valid response for node/carve endpoints
cmd/api/main.go	Applied authentication middleware to /checks-auth endpoint and corrected carves endpoint handler from CarveShowHandler to CarveListHandler
cmd/api/handlers/settings.go	Renamed method calls from VerifyType to VerifyService across all settings handlers

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